Daily Brain Teasers for Tuesday, 18 March 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find the right combination

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Calculate the number 301

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Find number abc

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Find the right combination

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Jakob SteinerBorn 18 Mar 1796; died 1 Apr 1863 at age 67.Swiss mathematician who was one of the greatest, contributors to projective geometry. He discovered the Steiner surface which has a double infinity of conic sections on it. The Steiner theorem states that the two pencils by which a conic is projected from two of its points are projectively related. He is also known for the Poncelet-Steiner theorem which shows that only one given circle and a straight edge are required for Euclidean constructions. His work included conic sections and surfaces, the theory of second-degree surfaces and centre-of-gravity problems. He developed the principle of symmetrization (1840-41). In 1848 he ws the first to define various polar curves with respect to a given curve, and introduced the “Steiner Curves.”« |
Calculate the number 2861

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MAGIC SQUARE: Calculate A*B+C

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Find number abc

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Which is a winning combination of digits?

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Calculate the number 2245

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Find number abc

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